Ios 在加载webview之前，如何获取设备id和设备令牌？

使用swift 3在Xcode 8上运行

下面是我的ViewController.swift

class ViewController: UIViewController {

    @IBOutlet weak var TestWebview: UIWebView!
    override func viewDidLoad() {
        super.viewDidLoad()

        let deviceid = UIDevice.current.identifierForVendor!.uuidString

        //I want to pass device id and device token to this testURL
        let testURL = URL(string: "http://www.test.com/user.html?device=ios&deviceid=" + deviceid + "&devicetoken=")


        let testURLRequest = URLRequest(url: testURL!)
        TestWebview(testURLRequest)
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }
}

下面是我的AppDelegate.swift文件

import UIKit
import UserNotifications

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?


    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

        let center = UNUserNotificationCenter.current()

        center.requestAuthorization(options: [.alert, .sound, .badge], completionHandler: { granted, error in
            if granted {
                print("Yes。")
            }
            else {
                print("No!")
            }
        })

        application.registerForRemoteNotifications()

        return true
    }


    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {

        let deviceTokenString = deviceToken.reduce("", {$0 + String(format: "%02X", $1)})
        print("===== deviceTokenString =====")
        print(deviceTokenString)
    }

}

现在，我可以在ViewController中获取设备id，也可以在AppDelegate文件中获取设备令牌

---

但是，如何将设备令牌传递给ViewController中的testURL，或者如何将设备id和设备令牌传递给testURL？

使

DeviceTokennstring

成为

AppDelegate

类中的属性

class AppDelegate: UIResponder, UIApplicationDelegate {
    ...
    var deviceTokenString: String?
    ...
    ...
    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
        // feed your property
        deviceTokenString = deviceToken.reduce("", {$0 + String(format: "%02X", $1)})
        print("===== deviceTokenString =====")
        print(deviceTokenString)
    }
}

现在，您可以从任何一个控制器获得

设备Tokensting

如下所示：

override func viewDidLoad() {
    super.viewDidLoad()

    guard let appDelegate = UIApplication.shared.delegate as? AppDelegate else {
        return 
    } 
    guard let deviceTokenString = appDelegate.deviceTokenString else {
        // deviceTokenString isn't available
        return
    }
    // deviceTokenString is available here

    let deviceid = UIDevice.current.identifierForVendor!.uuidString

    // I want to pass device id and device token to this testURL
    // Concat various types into string like below
    let testURL = URL(string: "http://www.test.com/user.html?device=ios&deviceid=\(deviceid)&devicetoken=\(deviceTokenString)")


    let testURLRequest = URLRequest(url: testURL!)
    TestWebview(testURLRequest)
}

---

创建一个名为

deviceTokenString

的属性。然后在使用

reduce

方法的地方输入此属性。然后从任何视图控制器中，获取

AppDelegate

实例并访问

devicetokensting

。（即：

guard让appDelegate=UIApplication.shared.delegate作为？appDelegate else{return}让deviceTokenString=appDelegate.deviceTokenString

）谢谢！但是我无法获取我的deviceTokenString，它运行到else块。您是否从AppDelegate获取这些行的日志：

print（==deviceTokenString===”）print（deviceTokenString）

？感谢您的回复。是的，在我的调试区域中，最后一行是====deviceTokenString====和我的设备令牌，但它似乎将运行guard让deviceTokenString=appDelegate.deviceTokenString else{print（“此处首先”）返回}，然后使用我的设备令牌打印===deviceTokenString=，我想这就是为什么我不能在view controller.swift中获取设备令牌的原因